glibc/nptl/libpthread-compat.c
Florian Weimer 08129b155e nptl: Move core condition variable functions into libc
Onl pthread_cond_clockwait did not have a forwarder, so it needs
a new symbol version.

Some complications arise due to the need to supply hidden aliases,
GLIBC_PRIVATE exports (for the C11 condition variable implementation
that still remains in libpthread) and 64-bit time_t stubs.

pthread_cond_broadcast, pthread_cond_signal,  pthread_cond_timedwait,
pthread_cond_wait, pthread_cond_clockwait have been moved using
scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-04-21 19:49:51 +02:00

58 lines
2.2 KiB
C

/* Placeholder definitions to pull in removed symbol versions.
Copyright (C) 2019-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <sys/cdefs.h>
#include <shlib-compat.h>
#ifdef SHARED
void
attribute_compat_text_section
__attribute_used__
__libpthread_version_placeholder_1 (void)
{
}
#endif
/* This is an unused compatibility symbol definition, to prevent ld
from creating a weak version definition for GLIBC_2.1.2. (__vfork
used to be defined at that version, but it is now provided by libc,
and there are no versions left in libpthread for that symbol
version.) If the ABI baseline for glibc is the GLIBC_2.2 symbol
version or later, the placeholder symbol is not needed because
there are plenty of other symbols which populate those later
versions. */
#if (SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_2))
compat_symbol (libpthread, __libpthread_version_placeholder_1,
__libpthread_version_placeholder, GLIBC_2_1_2);
#endif
#if (SHLIB_COMPAT (libpthread, GLIBC_2_2_3, GLIBC_2_2_4))
compat_symbol (libpthread, __libpthread_version_placeholder_1,
__libpthread_version_placeholder, GLIBC_2_2_3);
#endif
#if (SHLIB_COMPAT (libpthread, GLIBC_2_2_6, GLIBC_2_3))
compat_symbol (libpthread, __libpthread_version_placeholder_1,
__libpthread_version_placeholder, GLIBC_2_2_6);
#endif
#if (SHLIB_COMPAT (libpthread, GLIBC_2_3_2, GLIBC_2_3_4))
compat_symbol (libpthread, __libpthread_version_placeholder_1,
__libpthread_version_placeholder, GLIBC_2_3_2);
#endif